/**
* Wait for a surface to finish being displayed.
*/
VdpStatus
vlVdpPresentationQueueBlockUntilSurfaceIdle(VdpPresentationQueue presentation_queue,
VdpOutputSurface surface,
VdpTime *first_presentation_time)
{
vlVdpPresentationQueue *pq;
vlVdpOutputSurface *surf;
struct pipe_screen *screen;
if (!first_presentation_time)
return VDP_STATUS_INVALID_POINTER;
pq = vlGetDataHTAB(presentation_queue);
if (!pq)
return VDP_STATUS_INVALID_HANDLE;
surf = vlGetDataHTAB(surface);
if (!surf)
return VDP_STATUS_INVALID_HANDLE;
pipe_mutex_lock(pq->device->mutex);
if (surf->fence) {
screen = pq->device->vscreen->pscreen;
screen->fence_finish(screen, surf->fence, 0);
}
pipe_mutex_unlock(pq->device->mutex);
return vlVdpPresentationQueueGetTime(presentation_queue, first_presentation_time);
}
/**
* Poll the current queue status of a surface.
*/
VdpStatus
vlVdpPresentationQueueQuerySurfaceStatus(VdpPresentationQueue presentation_queue,
VdpOutputSurface surface,
VdpPresentationQueueStatus *status,
VdpTime *first_presentation_time)
{
vlVdpPresentationQueue *pq;
vlVdpOutputSurface *surf;
struct pipe_screen *screen;
if (!(status && first_presentation_time))
return VDP_STATUS_INVALID_POINTER;
pq = vlGetDataHTAB(presentation_queue);
if (!pq)
return VDP_STATUS_INVALID_HANDLE;
surf = vlGetDataHTAB(surface);
if (!surf)
return VDP_STATUS_INVALID_HANDLE;
*first_presentation_time = 0;
if (!surf->fence) {
if (pq->last_surf == surf)
*status = VDP_PRESENTATION_QUEUE_STATUS_VISIBLE;
else
*status = VDP_PRESENTATION_QUEUE_STATUS_IDLE;
} else {
pipe_mutex_lock(pq->device->mutex);
screen = pq->device->vscreen->pscreen;
if (screen->fence_finish(screen, NULL, surf->fence, 0)) {
screen->fence_reference(screen, &surf->fence, NULL);
*status = VDP_PRESENTATION_QUEUE_STATUS_VISIBLE;
pipe_mutex_unlock(pq->device->mutex);
// We actually need to query the timestamp of the last VSYNC event from the hardware
vlVdpPresentationQueueGetTime(presentation_queue, first_presentation_time);
*first_presentation_time += 1;
} else {
*status = VDP_PRESENTATION_QUEUE_STATUS_QUEUED;
pipe_mutex_unlock(pq->device->mutex);
}
}
return VDP_STATUS_OK;
}
